CN220078065U - Coarse rubber belt tension winding and coating mechanism for textile machine - Google Patents
Coarse rubber belt tension winding and coating mechanism for textile machine Download PDFInfo
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- CN220078065U CN220078065U CN202321443163.8U CN202321443163U CN220078065U CN 220078065 U CN220078065 U CN 220078065U CN 202321443163 U CN202321443163 U CN 202321443163U CN 220078065 U CN220078065 U CN 220078065U
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- 239000011248 coating agent Substances 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 39
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- 238000007493 shaping process Methods 0.000 claims abstract description 13
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Abstract
The utility model discloses a rough rubber belt tension winding and coating mechanism for a textile machine, which relates to the technical field of textile roller manufacturing and comprises a tension unreeling mechanism, a tension detecting mechanism and a rubber belt shaping mechanism, wherein the tension unreeling mechanism comprises an air expansion shaft, and one end of the air expansion shaft is connected with a brake; the tension detection mechanism is arranged on one side of the tension unreeling mechanism and comprises tension detectors, and a detection roller is connected between the tops of the two tension detectors; the two sides of the detection roller are symmetrically provided with a first guide wheel and a second guide wheel, and a cam transmission mechanism is arranged above the first guide wheel; the rubber belt shaping mechanism comprises a rotatable positioning ring, and the positioning ring is pulled by a tensioning cylinder; one end of the rough-surface rubber belt roll passes through the first guide wheel, the detection roller, the second guide wheel and the cam transmission mechanism in sequence and penetrates out of the positioning ring. The utility model can realize the winding production of the rubber belt wrapping roller under the condition of constant tension, realize the tension closed-loop control of the rubber belt and improve the degree of automation and the production efficiency.
Description
Technical Field
The utility model relates to the technical field of textile roller manufacturing, in particular to a rough-surface rubber belt tension winding and coating mechanism for a textile machine.
Background
The rough-surface rubber belt wrapping roller is widely applied to the fabric traction, tensioning and warp and weft yarn structure fixing in different working procedures of the textile industry, and can be used on various shuttleless looms such as air injection, water spraying, rapier, projectile shuttle and the like, cloth guide rollers of cloth inspection machines and printing and dyeing equipment. The rough rubber belt wrapping roller has very large demand, and as an essential accessory, the rough rubber belt wrapping roller is also a consumable product, when rough grain surfaces on rough rubber belts wound on the roller surfaces are ground down and cannot meet the process demand, the rough rubber belts are required to be peeled off and rewound and wrapped by the old rubber belts, the large demand is increased by adding frequent replacement frequency and labor cost every year, the production efficiency of the rubber belt wrapping roller is required to be high, and the time cost and the labor cost are saved to the greatest extent.
At present, because the special processing technology of the rough rubber belt wrapping roller requires that the rough rubber belt with the bandwidth of 35mm to 50mm is tightly wound on the roller core in a thread-tight way under the condition of certain tension, the automation is realized with certain difficulty, and therefore, the rough rubber belt wrapping roller is mainly manually wound, and the production efficiency of the rough rubber belt wrapping roller is greatly reduced; and because of the uncertainty of the tension manually built in the winding process, the constant tension is difficult to achieve, and the labor cost and the cost are increased every year while the yield is reduced.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide a rough-surface rubber belt tension winding and coating mechanism for a textile machine, which can realize winding and producing a rubber belt wrapping roller under the condition of constant tension, realize tension closed-loop control of the rubber belt and improve the degree of automation and the production efficiency.
In order to achieve the above object, the present utility model is realized by the following technical scheme:
the embodiment of the utility model provides a rough-surface rubber belt tension winding and coating mechanism for a textile machine, which comprises the following components:
the tension unreeling mechanism comprises an air expansion shaft for placing the rough-surface rubber belt roll, and one end of the air expansion shaft is connected with a brake;
the tension detection mechanism is arranged on one side of the tension unreeling mechanism and comprises tension detectors, and a detection roller is connected between the tops of the two tension detectors; the two sides of the detection roller are symmetrically provided with a first guide wheel and a second guide wheel, and a cam transmission mechanism is arranged above the first guide wheel;
the rubber belt shaping mechanism comprises a rotatable positioning ring, wherein the positioning ring is pulled by a tensioning cylinder; one end of the rough rubber belt roll passes through the first guide wheel, the detection roller, the second guide wheel and the cam transmission mechanism in sequence and penetrates out of the positioning ring so as to provide downward tension for the rough rubber belt under the tensioning effect.
As a further implementation manner, the first guide wheel, the second guide wheel and the cam transmission mechanism are connected between the first bracket and the second bracket, and the brake is arranged on one side of the second bracket.
As a further implementation mode, the tension unreeling mechanism further comprises a roll deviation preventing mechanism, one end of the roll deviation preventing mechanism is connected with the second bracket, and the roll deviation preventing mechanism is provided with a containing space of the rough-surface rubber roll.
As a further implementation manner, the anti-coil deviation mechanism comprises a fixed plate connected with the second bracket, the fixed plate is rotationally connected with the adjusting plate, and an accommodating space is formed between the adjusting plate and the fixed plate.
As a further implementation mode, the detection roller is rotatably arranged on the detection shaft, both ends of the detection shaft are connected with first supports, and a tension detector is arranged between the first supports and a second support below the first supports;
one of the second supports is fixed with the first support, and the other second support is fixed with the second support.
As a further implementation mode, the cam transmission mechanism comprises a wheel shaft and a transmission wheel arranged on the wheel shaft, and the transmission wheel is of a convex symmetrical arc-shaped structure.
As a further implementation mode, one side of the positioning ring is rotationally connected with the first bracket through the first support plate, and the other side of the positioning ring is rotationally connected with the second bracket through the second support plate; the first support plate or the second support plate is connected with the tensioning cylinder.
As a further implementation, the first support plate or the second support plate is provided with a stop lever at an end thereof.
As a further implementation manner, the stop lever is in an L-shaped structure.
As a further implementation, the device further comprises a tension control mechanism, wherein the tension control mechanism comprises a tension controller, and the tension detector is connected with the tension controller.
The beneficial effects of the utility model are as follows:
(1) The tension unreeling mechanism can tension the rough-surface rubber belt roll and play a role in constant tension unreeling; the tension detection mechanism and the tension control mechanism are used for detecting and controlling the tension of the rubber belt during unreeling; the rubber belt shaping mechanism is matched with the guide wheel group mechanism, so that the rubber belt is in a convex state when being wound on the surface of the roller core, and the rubber belt has a force extending leftwards and rightwards when contacting the roller core, thereby completing the tight winding and coating operation between every two screw pitches of the rubber belt.
(2) The transmission wheel in the cam transmission mechanism is processed into a convex symmetrical arc-shaped structure, the rubber belt is preliminarily shaped, the rubber belt shaping mechanism is matched, the positioning ring is fixed between the first support plate and the second support plate, and the rubber belt passes through the positioning ring and is wound on a workpiece in a convex C-shaped state under the tensioning of the tensioning cylinder; and a stop lever is also arranged and used for keeping convex C-shaped rubber belts and keeping screw pitches during winding.
(3) The pneumatic shaft is connected with the brake, the rubber belt roll is tensioned and positioned through the pneumatic shaft, and torque control is realized through the brake of the brake when unreeling; meanwhile, the anti-deviation mechanism for the coil is arranged, so that the position of the adhesive tape coil can be prevented from being deviated, and the coil can be conveniently replaced.
(4) The tension detector directly measures the actual tension value of the rubber belt, converts the tension value into a tension signal, feeds the tension signal back to the tension controller, compares the tension signal with the tension value preset by the controller, calculates a control signal, and automatically controls the execution unit to make the tension signal converted from the tension value equal to the preset tension value so as to achieve the purpose of stabilizing the tension.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a perspective view of one or more embodiments of the present utility model;
FIG. 2 is a second perspective view of the present disclosure in accordance with one or more embodiments;
FIG. 3 is a schematic diagram of closed loop control according to one or more embodiments of the present utility model;
FIG. 4 is a cross-sectional view of a tension unreeling mechanism in accordance with one or more embodiments of the present utility model;
FIG. 5 is a cross-sectional view of a tension detection mechanism according to one or more embodiments of the present utility model.
The tension control mechanism comprises 1-1 parts of tension unreeling mechanism, 1-2 parts of air expansion shaft, 1-3 parts of anti-roll deviation mechanism, 1-4 parts of air compression butterfly brake, 1-5 parts of gland, 1-6 parts of bearing sleeve, 2 parts of tension detection mechanism, 2-1 parts of detection shaft, 2-2 parts of first support, 2-3 parts of tension detector, 2-4 parts of second support, 2-5 parts of housing, 2-6 parts of detection roller, 3 parts of first support, 4 parts of rubber belt shaping mechanism, 4-1 parts of first support plate, 4-2 parts of stop lever, 4-3 parts of positioning ring, 4-4 parts of rotating shaft, 4-5 parts of second support plate, 4-6 parts of tensioning cylinder, 4-7 parts of bearing seat, 5 parts of guide wheel group mechanism, 5-1 parts of cam transmission mechanism, 5-2 parts of first guide wheel, 5-3 parts of second guide wheel, 6 parts of second support and 7 parts of tension control mechanism.
Detailed Description
Embodiment one:
in an exemplary embodiment of the present utility model, as shown in fig. 1 and 2, a mechanism for winding a coating with a matte-surface rubber belt tension for a textile machine is provided.
Because of the special processing technology requirement of the rough rubber belt wrapping roller, the rough rubber belt is tightly wound on the roller core in a silk-tight way under the condition of certain tension, and the automation is difficult to realize; and uncertainty of manually building tension in the winding process is difficult to achieve constant tension, so that yield is reduced.
Based on the above, the embodiment provides a rough rubber belt tension winding and coating mechanism for a textile machine, wherein a tension unreeling mechanism 1, a tension detecting mechanism 2, a tension control mechanism 7, a guide wheel group mechanism 5 and a rubber belt shaping mechanism 4 are arranged on a frame, and the tension unreeling mechanism 1 can play a role in constant tension unreeling while tensioning a rough rubber belt roll; the tension detection mechanism 2 and the tension control mechanism 7 are used for detecting and controlling the tension of the rubber belt during unreeling; the guide wheel set mechanism 5 is used for transmitting rough rubber belts; the rubber belt shaping mechanism 4 is matched with the guide wheel group mechanism 5, so that the rubber belt is in a convex state when being wound on the surface of the roller core, and the rubber belt has a force extending leftwards and rightwards when contacting the roller core, thereby completing the tight winding and coating operation between every two screw pitches of the rubber belt.
The rough surface rubber belt tension winding and coating mechanism for the textile machine is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the frame comprises a first bracket 3 and a second bracket 6, and the first bracket 3 and the second bracket 6 are provided with a certain interval; the tension unreeling mechanism 1 and the tension control mechanism 7 are arranged on the second bracket 6, and the tension detection mechanism 2, the rubber belt shaping mechanism 4 and the guide wheel group mechanism 5 are arranged between the first bracket 3 and the second bracket 6.
As shown in fig. 1, 2 and 4, the tension unreeling mechanism 1 comprises an air expansion shaft 1-2, a coil deviation preventing mechanism 1-3, an air compression butterfly brake 1-4 and the like, wherein the air compression butterfly brake 1-4 is arranged on one side of a second bracket 6, one end of the air expansion shaft 1-2 is connected with the air compression butterfly brake 1-4, a bearing sleeve 1-6 fixed with the air compression butterfly brake 1-4 is arranged in the second bracket 6, and the air expansion shaft 1-2 is matched with the bearing sleeve 1-6 through a bearing, so that the air expansion shaft 1-2 can rotate.
The gland 1-5 is installed towards one side of the air pressure butterfly brake 1-4 of the bearing sleeve 1-6, and the gland 1-5 plays a role in positioning a bearing. The other end of the air expansion shaft 1-2 passes through the second bracket 6 to the other side, and the rough surface rubber belt roll 1-1 is sleeved on the air expansion shaft 1-2. The rough-surface rubber belt roll 1-1 is tensioned and positioned through the inflatable shaft 1-2, and torque control is realized through braking of the air pressure butterfly brake 1-4 during unreeling.
The belt width range of the rough-surface rubber belt 1-1 is generally between 30mm and 50mm, the length of a coiled belt is generally 100m or more, and the condition that the outer circumference of the coiled belt is inclined and collapsed easily when the coiled belt with a narrow circumference and a large diameter is unreeled under the tensioning condition is easy to occur, so the coiled belt is protected by adopting the anti-deviation mechanism 1-3.
The coil deviation preventing mechanism 1-3 is connected with the second bracket 6 and comprises a fixing plate and an adjusting plate, wherein one end of the fixing plate is fixed with the top of the second bracket 6, the other end of the fixing plate is rotationally connected with the adjusting plate, and a U-shaped accommodating cavity is formed between the adjusting plate and the fixing plate; the adjusting plate and the fixing plate have a certain width which is slightly larger than the thickness of the rough surface rubber belt 1-1 so as to limit the deviation of the coil. The adjusting plate can rotate left and right relative to the fixing plate, and the adjusting plate and the fixing plate can be matched through hinge connection so as to replace the coil.
The tension detection mechanism 2 is horizontally supported by the first bracket 3 and the second bracket 6, and the tension detection mechanism 2 comprises a detection shaft 2-1, a detection roller 2-6, a tension detector 2-3 and the like; the opposite sides of the first bracket 3 and the second bracket 6 are taken as the outer sides, as shown in fig. 5, the first bracket 3 and the second bracket 6 are correspondingly provided with a second support 2-4, a first support 2-2 is arranged above the second support 2-4, and a tension detector 2-3 is arranged between the first support 2-2 and the second support 2-4; the two ends of the detection shaft 2-1 are connected with the corresponding first support 2-2, and the detection roller 2-6 is arranged on the detection shaft 2-1 through a bearing; the first support 2-2, the tension detector 2-3 and the second support 2-4 are all disposed within the housing 2-5.
In order to ensure the accuracy of measurement, the levelness of the axes of the detection roller 2-6 and the rough surface rubber belt roll 1-1 is ensured during installation, namely, the axes of the detection roller 2-6 and the rough surface rubber belt roll 1-1 are parallel to each other.
As shown in fig. 1 and 2, the guide wheel set mechanism 5 includes a cam transmission mechanism 5-1 and guide wheels connected between a first bracket 3 and a second bracket 6, and in this embodiment, the guide wheels are provided with two, i.e., a first guide wheel 5-2 and a second guide wheel 5-3, which are arranged in sequence in the transverse direction; taking the side of the tension unreeling mechanism 1 as the front side, the second guide wheel 5-3 is positioned at the front side, and the first guide wheel 5-2 is positioned at the rear side; the cam transmission mechanism 5-1 is located above the first guide wheel 5-2 and the second guide wheel 5-3.
In order to ensure the accuracy of the measurement of the tension detector 2-3, the detection roller 2-6 must be parallel to the first guide roller 5-2 and the second guide roller 5-3, and the first guide roller 5-2 and the second guide roller 5-3 are symmetrically disposed with respect to the detection roller 2-6.
The guide wheel set mechanism 5 is used for providing guidance for the trend of the rubber belt, meanwhile, the installation requirement is met in the position design, the cam transmission mechanism 5-1, the first guide wheel 5-2 and the second guide wheel 5-3 are respectively connected with corresponding wheel shafts through bearings, the wheel shafts are fixed with the first support 3 and the second support 6, and as shown in fig. 3, the rough rubber belt firstly passes through the lower end of the second guide wheel 5-3 and then enters the upper end of the detection roller 2-6, and then enters the cam transmission mechanism 5-1 through the lower end of the first guide wheel 5-2.
The cam transmission mechanism 5-1 comprises a wheel shaft and a transmission wheel rotatably connected to the wheel shaft; because of the special processing technology of the rough rubber belt wrapping roller, the rubber belt needs to ensure tight thread joint between every pitch rubber belt when being wound on the roller core under tension, the rough rubber belt needs to ensure a convex state when being wrapped on a workpiece, and the pressure spreading to two sides is provided at the moment of wrapping to meet the wrapping technology requirement, therefore, the transmission wheel is arranged into a symmetrical arc structure with a convex middle part, and the rough rubber belt is primarily shaped.
In order to better keep the C-shaped state of the rubber belt during cladding, the shape of the rubber belt before cladding is further shaped by a rubber belt shaping mechanism 4. As shown in fig. 1 and 2, the rubber belt shaping mechanism 4 comprises a first support plate 4-1, a first support plate 4-5, a rotating shaft 4-4, a positioning ring 4-3, a tensioning cylinder 4-6 and the like, two ends of the rotating shaft 4-4 are respectively connected with the first support 3 and the second support 6 through bearing blocks 4-7, and the rotating shaft 4-4 is positioned below the cam transmission mechanism 5-1.
The first support plate 4-1 is positioned at the outer side of the first support 3 and fixedly connected with one end of the rotating shaft 4-4, the second support plate 4-5 is positioned at the outer side of the second support 6 and fixedly connected with the other end of the rotating shaft 4-4, and the first support plate 4-1 and the second support plate 4-5 can rotate along with the rotating shaft 4-4 and are parallel to each other.
A positioning ring 4-3 is connected between the first support plate 4-1 and the second support plate 4-5, and the positioning ring 4-3 is fixed with the first support plate 4-1 and the second support plate 4-5 through screws respectively; the positioning ring 4-3 is a circular ring, and the axis of the central opening of the positioning ring can be parallel to the first support plate 4-1 and the second support plate 4-5.
In the embodiment, a stop lever 4-2 is fixed on the inner side of one end of the first support 4-1 far away from the first support 3, and the stop lever 4-2 is of an L-shaped structure; and the bar 4-2 is bent upward. The stop lever 4-2 can adjust the installation position according to the band width of the rubber belt so as to better ensure the C-shaped state of the rubber belt and the thread pitch during winding; one end of the second support plate 4-1 far away from the second support frame 6 is connected with a cylinder rod of the tensioning cylinder 4-6 through a rotary hinge, and the tensioning cylinder 4-6 is connected with the second support frame 6 through the rotary hinge; when the rubber belt is wrapped, the rubber belt passing through the positioning ring 4-3 is pulled downwards by the stretching-in and stretching-out of the tensioning cylinder 4-6, so that the rubber belt is in a convex C-shaped state, and the process requirement is met.
It will be appreciated that in other embodiments, the mounting positions of the stop lever 4-2 and the tensioning cylinder 4-6 are replaceable, i.e. the stop lever 4-2 is mounted to the second support plate 4-5 and the tensioning cylinder 4-6 is connected between the first support plate 4-1 and the first bracket 3.
The tension control mechanism 7 is fixed on the second bracket 6 through screws and comprises a tension controller and a controller box, so that a foundation platform is provided for intelligent manufacturing and interconnection while visual closed-loop tension control adjustment is provided for the whole tension unreeling process.
The working principle of the embodiment is as follows:
as shown in FIG. 3, a rough-surface rubber belt roll 1-1 is mounted on an inflatable shaft 1-2, is tensioned by the inflatable shaft 1-2, and is braked and controlled in torque by an air pressure butterfly brake 1-4 connected with the inflatable shaft 1-2; when unreeling, the rubber belt firstly enters the detection roller 2-6 through the second guide wheel 5-3 to carry out tension detection, then sequentially passes through the first guide wheel 5-2 and the cam transmission mechanism 5-1 to penetrate into the positioning ring 4-3 in the rubber belt shaping mechanism 4, and under the tensioning of the tensioning cylinder 4-6, the rubber belt has downward tension before being coated to the roller core in a transmission mode, so that the rubber belt is in a convex C-shaped state before being coated, the rubber belt is enabled to have the forces extending towards the two ends of the band width in the moment of contact between the rubber belt and the roller core in the coating process, the compactness between each pitch band width of the coated wrapping roller is achieved, and the process requirements of the wrapping roller in the textile industry are met.
In tension control, the tension detector 2-3 directly measures the actual tension value of the rubber belt, converts the tension value into a tension signal, feeds the tension signal back to the tension controller, compares the tension signal with a tension value preset by the controller, calculates a control signal, and automatically controls the execution unit to make the tension signal converted from the measured tension value equal to the preset tension value so as to achieve the purpose of stabilizing tension.
In the whole tension unreeling device, the brake is used for braking and controlling the torque, the braking torque is continuously reduced along with the continuous reduction of the reeling diameter of the rubber belt roll, and the torque of the air compression butterfly brake 1-4 is automatically controlled by the tension controller according to the tension value detected by the tension detector 2-3, so that the tension is constant, and the constant tension unreeling effect is achieved.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a rough rubber belt tension winding cladding mechanism for textile machine which characterized in that includes:
the tension unreeling mechanism comprises an air expansion shaft for placing the rough-surface rubber belt roll, and one end of the air expansion shaft is connected with a brake;
the tension detection mechanism is arranged on one side of the tension unreeling mechanism and comprises tension detectors, and a detection roller is connected between the tops of the two tension detectors; the two sides of the detection roller are symmetrically provided with a first guide wheel and a second guide wheel, and a cam transmission mechanism is arranged above the first guide wheel;
the rubber belt shaping mechanism comprises a rotatable positioning ring, wherein the positioning ring is pulled by a tensioning cylinder; one end of the rough rubber belt roll passes through the first guide wheel, the detection roller, the second guide wheel and the cam transmission mechanism in sequence and penetrates out of the positioning ring so as to provide downward tension for the rough rubber belt under the tensioning effect.
2. The mechanism of claim 1, wherein the first guide wheel, the second guide wheel and the cam transmission mechanism are connected between the first bracket and the second bracket, and the brake is mounted on one side of the second bracket.
3. The matte-surface rubber belt tension winding and coating mechanism for a textile machine according to claim 2, wherein the tension unreeling mechanism further comprises a roll deviation preventing mechanism, one end of the roll deviation preventing mechanism is connected with the second bracket, and the roll deviation preventing mechanism is provided with a containing space of the matte-surface rubber belt roll.
4. A rough-surface rubber belt tension winding and coating mechanism for a textile machine according to claim 3, wherein the belt-winding deviation prevention mechanism comprises a fixed plate connected with the second bracket, the fixed plate is rotatably connected with the adjusting plate, and an accommodating space is formed between the adjusting plate and the fixed plate.
5. The rough-surface rubber belt tension winding and coating mechanism for a textile machine according to claim 2, wherein the detection roller is rotatably arranged on a detection shaft, both ends of the detection shaft are connected with first supports, and a tension detector is arranged between the first supports and a second support below the first supports;
one of the second supports is fixed with the first support, and the other second support is fixed with the second support.
6. The rough-surface rubber belt tension winding and coating mechanism for a textile machine according to claim 1 or 2, wherein the cam transmission mechanism comprises a wheel shaft and a transmission wheel arranged on the wheel shaft, and the transmission wheel is of a convex symmetrical arc-shaped structure.
7. The mechanism according to claim 1, wherein one side of the positioning ring is rotatably connected to the first bracket via a first support plate, and the other side is rotatably connected to the second bracket via a second support plate; the first support plate or the second support plate is connected with the tensioning cylinder.
8. The mechanism of claim 7, wherein the first support plate or the second support plate is provided with a stop lever at the end thereof.
9. The mechanism of claim 8, wherein the bar is L-shaped.
10. The matte-surface rubber band tension wrapping mechanism for a textile machine according to claim 1, further comprising a tension control mechanism, wherein said tension control mechanism comprises a tension controller, and wherein said tension detector is connected to said tension controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321443163.8U CN220078065U (en) | 2023-06-06 | 2023-06-06 | Coarse rubber belt tension winding and coating mechanism for textile machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321443163.8U CN220078065U (en) | 2023-06-06 | 2023-06-06 | Coarse rubber belt tension winding and coating mechanism for textile machine |
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| CN220078065U true CN220078065U (en) | 2023-11-24 |
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| CN202321443163.8U Active CN220078065U (en) | 2023-06-06 | 2023-06-06 | Coarse rubber belt tension winding and coating mechanism for textile machine |
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| CN (1) | CN220078065U (en) |
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